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AM3715 USB HOST PORT 1

Jian Zhou
Intellectual 1930 points

Hello,

The OMAP EVM Main Board with AM37x processor module connect USB3320 to the port 2 of the EHCI USB controller, now our customer use the port 1 with the same PHY of USB3320, but it seems can not work. Modification of omap_usbhs.reg is enough for this change ?

Thanks a lot!

 

  • 0
    Mastermind 9310 points

    The registry settings should be all that needs to be modified.  The BSP_OMAP_USB_HOST2 flag in the USB Host OS Design item means EHCI so within that section of the omap_usbhs.reg file you would want to add your Port 1 settings, for example:

    IF BSP_OMAP_USB_HOST2   

    ;Port 1 Settings

        ; HS USB port 2 (MM2) must be set to mode 1 if using the EVM2

        "Port1Mode"=dword:1

        ; Custom board is using GPIO19 to enable VBUS for the HSUSB host port

        "Port1PwrGpio"=dword:13 ; GPIO_19

        "Port1PwrLevel"=dword:1

        "Port1RstGpio"=dword:14    ; GPIO_20

    ;Port 2 Settings:

        ; HS USB port 2 (MM2) must be set to mode 1 if using the EVM2

        "Port2Mode"=dword:1

        ; EVM2 using GPIO22 to enable VBUS for the HSUSB host port

        "Port2PwrGpio"=dword:16 ; GPIO_22

        "Port2PwrLevel"=dword:1

        "Port2RstGpio"=dword:15    ; GPIO_21

    ELSE

    "Port1Mode"=dword:0   

    "Port2Mode"=dword:0

    ENDIF

        "Port3Mode"=dword:0 ; Port 3 is not supported on this board    

  • 0 in reply to Adeneo Embedded support team
    TI__Intellectual 1930 points

    thanks a lot!

    I will push customer to verify it.